/**
* The "token endpoint" as described in <a
* href="http://tools.ietf.org/html/draft-ietf-oauth-v2-31#section-3.2">Section 3.2</a> of the
* OAuth spec.
*
* @param authorization the HTTP Basic auth header.
* @param formParameters the request parameters
* @return the response
*/
@POST
@Path("/token")
@Produces(MediaType.APPLICATION_JSON)
@Consumes("application/x-www-form-urlencoded")
public Response token(
@HeaderParam("Authorization") String authorization,
final MultivaluedMap<String, String> formParameters) {
// Convert incoming parameters into internal form and validate them
AccessTokenRequest accessTokenRequest =
AccessTokenRequest.fromMultiValuedFormParameters(formParameters);
BasicAuthCredentials credentials =
BasicAuthCredentials.createCredentialsFromHeader(authorization);
ValidationResponse vr = oAuth2Validator.validate(accessTokenRequest, credentials);
if (!vr.valid()) {
return sendErrorResponse(vr);
}
// The request looks valid, attempt to process
String grantType = accessTokenRequest.getGrantType();
AuthorizationRequest request;
try {
if (GRANT_TYPE_AUTHORIZATION_CODE.equals(grantType)) {
request = authorizationCodeToken(accessTokenRequest);
} else if (GRANT_TYPE_REFRESH_TOKEN.equals(grantType)) {
request = refreshTokenToken(accessTokenRequest);
} else if (GRANT_TYPE_CLIENT_CREDENTIALS.equals(grantType)) {
request = clientCredentialToken(accessTokenRequest);
} else if (GRANT_TYPE_PASSWORD.equals(grantType)) {
request = passwordToken(accessTokenRequest);
} else {
return sendErrorResponse(ValidationResponse.UNSUPPORTED_GRANT_TYPE);
}
} catch (ValidationResponseException e) {
return sendErrorResponse(e.v);
}
AccessToken token = createAccessToken(request, false);
AccessTokenResponse response =
new AccessTokenResponse(
token.getToken(),
BEARER,
token.getExpiresIn(),
token.getRefreshToken(),
StringUtils.join(token.getScopes(), ' '));
return Response.ok()
.entity(response)
.cacheControl(cacheControlNoStore())
.header("Pragma", "no-cache")
.build();
}
private Response sendErrorResponse(ValidationResponse response) {
return sendErrorResponse(response.getValue(), response.getDescription(), response.getStatus());
}
